Not the first time for high color guard. They also won the trophy in 1978. It was somewhat controversial as they didn't carry any rifles that year, just hula hoops and flags.
On another note, Gale must be beaming in heaven. Beating the Troopers was a milestone when he first came out with the Vanguard. Now even the Vanguard Cadets have beaten them. That is a real accomplishment. He is grinning from ear to ear and so pleased to see SCV in 2nd and pushing for #1 next year.